Eastern China (Shanghai):
3,700-3,750 yuan ($531-538) per tonne, up 20-30 yuan per tonne
Northern China (Beijing):
3,550-3,570 yuan per tonne, unchanged
Sellers in eastern China started with offer prices at 3,700-3,730 yuan per tonne in the morning, but raised prices to as high as 3,750 yuan per tonne in the afternoon bolstered by stronger trading than on Monday.
One trader based in Shanghai...